What are the functions of each table? what is the forign key and Unique keys in each table?

Q: What is the query to create this table?

A: Find the required query given as below :

Q: Q1: Show all the information from the employee table. SELECT * FROM emp; Q2: Show the employees…

A: The select statement is used to select a value from the database. The selected columns are displayed…

Q: Create correlated and noncorrelated subqueries and understand when to use

A: SQL or Structured Query Language is used for relational database. Relational Database uses rows and…

Q: Creating a table with following information: Name of table: Worker, columns and data types:…

A: The CREATE TABLE statement is used to create a new table in a database.

Q: The table is considered as not normalized, explain why? And what is the INF of the table?

A: Answer is in below step.

Q: . If the Employees table contains a foreign key named dept_id, is it likely that the values in this…

A: Employee contains primary key of department as foreign key.  This means there is one to many…

Q: how to add models for your new tables please answer with an example

A: A Data Model allows you to integrate data from multiple tables, effectively building a relational…

Q: What’s the difference between correlated and uncorrelated subqueries?

A: Difference between correlated and uncorrelated sub queries A non correlated sub query is executed…

Q: What is a primary key? How important is the primary key in setting a relationship between tables?

A: A Key is a set of attributes that can identify each tuple uniquely of the given relation They used…

Q: What is the problem associated with changing the name of a table?

A: Problems associated with renaming the table: Renaming the table name leads to breaking the scripts…

Q: List student names and total reservations for all students whose have reservad a book more then one…

A: SQL Query: select s.sname and count(r.sid) from student as s, reservation as r, book as b where…

Q: The data set can contain many data tables Select one: True OFalse

A: A data set is an accumulation of linked, separate, tabularly presented related data items that can…

Q: There are ten columns in the table "customer," yet there is no row. A total of 10 new rows are added…

A: TipA table is a list of connected data kept in a database in table format. A table in relational and…

Q: When is an index appropriate for a table?

A: Index: The index is used to access the data from the database speedily. Syntax of creating an index:…

Q: Every record in a table must contain at least a unique field called primary key.

A: Will be explained:

Q: Which attribute would be a primary key? and can you put this in a table

A: The primary key is a special attribute in a table where it have all the values unique in it.

Q: What exactly is a main key? How crucial is the main key in establishing a link between tables?

A: Intro A Key is a set of attributes that can identify each tuple uniquely of the given relation They…

Q: to revise the last table, what number must be subtracted from all the uncovered values

A: Now, the smallest uncovered element 10 should be subtracted from all uncovered rows.   Task1…

Q: How do you create a primary key for a table with columns that could potentially contain the same…

A: A primary key must be the column with all different values. In some tables a single column may not…

Q: (check all that apply) Under what conditions, the 3rd normal form is automatically satisfied if…

A: Third Normal FormThird normal form is a normal form used for normalizing a database design for…

Q: Question 5 For a given table including named employee including field ( ID, Name, Dept. Salary,…

A: SQL stands for Structured Query Language.

Q: Explain how the terms parent table and child table relate to the tables in your answer to question…

A: Given: Explain how the terms parent table and child table relate to the tables in your answer to…

Q: What are joins and mention different types of joins?

A: Joins in SQL are used to combine two or more tables with common fields between them. there are 4…

Q: 1. Display detail of all employees from Employee table. Answer: 2. Display name of employees, who…

A: The first three parts will be answered 1 To select all records from a table, SELECT along with *…

Q: What is the significance of a table's main key? What is an appropriate example to use?

A: Introduction: Using the primary key, you may rapidly create and identify particular entries in a…

Q: For the same table customer, each row is called * fields attributes foreign key tuples

A: This MCQ is based on RDBMS.

Q: Q.1.4 Update the contents of the EMPLOYEES table to populate the new AGE field that was added to the…

A: Since information about table in Q.1.3 is not given, I am assuming that table has DateOfBirth…

Q: Create a table named Clerks, with 3 columns (employee-id, first name and job_id) where all employees…

A: The question has been answered in step2

Q: The 'customer' table contains ten columns but no rows. The table is then updated with 10 new rows…

A: Degree of a table in SQL: The number of attributes or columns in a relation is referred to as the…

Q: False

A: EXPLANATION A view in a database is nothing but a virtual table. A view can have rows and columns…

Q: Create a table which return all the products • Name • Unit price New price with increment of 10 %…

A: Syntax of creating table is CREATE TABLE <TABLE NAME> ( <column1> datatype,…

Q: What type of the Query is used?

A: Type of query.

Q: The FOREIGN KEY constraint should be added to which table? ( refer to the tables in the JustLee…

A: Foreign key constraint A foreign key is a key to link two tables together. The foreign key…

Q: Create a procedure to display manager ID and number of employees managed by each manager. Use…

A: SQL procedure to display manager details from Employee table is given below.

Q: What is the relevance of the primary key in a table? What would be a good example to use?

A: Introduction: Using the primary key, you may rapidly create and identify particular entries in a…

Q: List the advantages of Table in Database? write short note about NULL value?

A: Question. List the advantages of Table in Database? write short note about NULL value? Answer. Some…

Q: List all orders with customer information.

A: Get all the data from both tables where this has common column cid which helps in fetching the…

Q: How many records will the following query on table BEVERAGE return? SELECT * FROM beverage WHERE…

A: CODE(SCREENSHOT) : Explanation :  The above query shows all the columns of the table name…

Q: Q2 ) Write a one SQL statement: 1. change the parkingSpace column of Cars table with 'not available'…

A: A query is a statement that asks a question or makes an inquiry about a piece of data. We get useful…

Q: 1 Update CITY_NAME of CUSTOMER table for all customers. Take CITY_NAME from CITY table according to…

A: Update CITY_NAME of CUSTOMER table for all customers. Take CITY_NAME from CITY table according to…

Q: what is  table ?

A: Table: A table is an arrangement of information in rows and columns containing cells which…

Q: The query that will show the customer records sorted according to region_id SELECT * FROM customer…

A: The correct option is  c) SELECT * FROM customer ORDER BY region_id

Q: What is the importance of primary key in a table? Explain with suitable example.

A: Statement: The primary key of a relational table uniquely identifies each entry in the table in the…

Q: em.usetab

A: The answer is below:

Q: Using the Tables provided create two store procedures and define the business reasons for them.

A: Answer: 1. DROP PROCEDURE IF EXISTS p_property; GO CREATE PROCEDURE p_property_all AS BEGIN   SELECT…

Q: Write an SQL CREATE TABLE statement to create the PET table without a referential integrity…

A: Tables can be created in SQL using the CREATE TABLE command. Ex: CREATE TABLE table name ( col name…

SQL Query

Structured Query Language is the full form of SQL. It is one of the standard languages to deal with the relational database. It is used to insert, update, delete, and search the records stored in a RDBMS. The relational databases are created and managed by using SQL.